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Is there any kind of color glaze cup? Is it toxic?

- Mar 26, 2018 -

1.1 red glaze system including red festival. Blush. Lang Hong, beauty drunk. Red beans and so on, mainly copper as a coloring agent, in addition to gold colored carmine and iron colored red iron glaze;


    1.2 The blue glaze system includes azure. Longquan. Bean green. Shadow Green. Powder blue. Mei Ziqing. Yuqing, tea green, holly. Duck eggs, etc., mainly iron colorants;


    1.3 The blue glaze system includes indigo. Sky blue, blue. Etc., mainly cobalt colorants;


    1.4 yellow glaze system including the yellow. Bright yellow. yolk. Plum yellow, yellow puffer fish, mainly iron as a coloring agent, divided into two kinds of low temperature and high temperature;


    1.5 Green glaze system includes peacock green. Melon green, dry stone green, green water, etc., with copper as the coloring agent of low temperature glaze;


    1.6 purple glaze system includes grape purple, eggplant purple. Rose purple, low temperature glaze with manganese as the main colorant;


    1. The kiln-changing glaze system includes the Song Dynasty glaze. Flame red. Sanyang Kaitai and others are opaque glazes that are mixed with colorants; in addition to iron-colored glazes and amethyst glazes and iron-crystallized tea-leaf glazes, the tea glaze emphasizes the subtle changes in color, making the process difficult. Appreciators are few and gradually decline.


    Because the color glaze is very demanding on the kiln, it has great difficulty in production, especially the copper red glaze, and the firing is unstable. Even if the exact same formula is applied to the same color glaze, if the kiln is placed slightly different, different color effects will appear after firing.


Soaked in acetic acid for 24 hours, tested for lead and cadmium acetate content.

Generally, the newly purchased porcelain dishes have a pattern outside. After they are bought home, they must be washed and then put in a pot to remove the lead and cadmium in the paint.